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Oliveira LS, Rosa LB, Affonso DD, Santos IA, Da Silva JC, Rodrigues GC, Harris M, Jardim ACG, Nakahata DH, Sabino JR, de Carvalho JE, Miguel DC, Ruiz ALTG, Abbehausen C. Novel Bidentate Amine Ligand and the Interplay between Pd(II) and Pt(II) Coordination and Biological Activity. Chembiochem 2024; 25:e202300696. [PMID: 38146865 DOI: 10.1002/cbic.202300696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/21/2023] [Accepted: 12/24/2023] [Indexed: 12/27/2023]
Abstract
Pt(II) and Pd(II) coordinating N-donor ligands have been extensively studied as anticancer agents after the success of cisplatin. In this work, a novel bidentate N-donor ligand, the N-[[4-(phenylmethoxy)phenyl]methyl]-2-pyridinemethanamine, was designed to explore the antiparasitic, antiviral and antitumor activity of its Pt(II) and Pd(II) complexes. Chemical and spectroscopic characterization confirm the formation of [MLCl2 ] complexes, where M=Pt(II) and Pd(II). Single crystal X-ray diffraction confirmed a square-planar geometry for the Pd(II) complex. Spectroscopic characterization of the Pt(II) complex suggests a similar structure. 1 H NMR, 195 Pt NMR and HR-ESI-MS(+) analysis of DMSO solution of complexes indicated that both compounds exchange the chloride trans to the pyridine for a solvent molecule with different reaction rates. The ligand and the two complexes were tested for in vitro antitumoral, antileishmanial, and antiviral activity. The Pt(II) complex resulted in a GI50 of 10.5 μM against the NCI/ADR-RES (multidrug-resistant ovarian carcinoma) cell line. The ligand and the Pd(II) complex showed good anti-SARS-CoV-2 activity with around 65 % reduction in viral replication at a concentration of 50 μM.
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Affiliation(s)
- Laiane S Oliveira
- Institute of Chemistry, University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, Campinas, São Paulo, Brazil
| | - Letícia B Rosa
- Institute of Biology, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Daniele D Affonso
- Faculty of Pharmaceutical Sciences, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Igor A Santos
- Institute of Biomedical Sciences, Federal University of Uberlândia, João Naves de Ávila Avenue, 2121 -, Santa Mônica, Uberlândia, Minas Gerais, Brazil
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Woodhouse, Leeds, LS2 9JT, UK
| | - Jennyfer C Da Silva
- Institute of Chemistry, University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, Campinas, São Paulo, Brazil
| | - Gustavo C Rodrigues
- Institute of Chemistry, University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, Campinas, São Paulo, Brazil
| | - Mark Harris
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Woodhouse, Leeds, LS2 9JT, UK
| | - Ana Carolina G Jardim
- Institute of Biomedical Sciences, Federal University of Uberlândia, João Naves de Ávila Avenue, 2121 -, Santa Mônica, Uberlândia, Minas Gerais, Brazil
- Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University, Cristóvão Colombo street, 2265 -, Jardim Nazareth. São José do Rio Preto, São Paulo, Brazil
| | - Douglas H Nakahata
- Institute of Chemistry, Federal University of Goiás, Esperança Avenue, Campus Samambaia., Goiânia, Goiás, Brazil
| | - José R Sabino
- Institute of Physics, Federal University of Goiás, Esperança Avenue, Campus Samambaia., Goiânia, Goiás, Brazil
| | - João E de Carvalho
- Faculty of Pharmaceutical Sciences, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Danilo C Miguel
- Institute of Biology, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Ana Lucia T G Ruiz
- Faculty of Pharmaceutical Sciences, University of Campinas, Cidade Universitária Zeferino Vaz -, Barão Geraldo, Campinas, São Paulo, Brazil
| | - Camilla Abbehausen
- Institute of Chemistry, University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, Campinas, São Paulo, Brazil
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Ajaz A, Shaheen MA, Ahmed M, Munawar KS, Siddique AB, Karim A, Ahmad N, Rehman MFU. Synthesis of an amantadine-based novel Schiff base and its transition metal complexes as potential ALP, α-amylase, and α-glucosidase inhibitors. RSC Adv 2023; 13:2756-2767. [PMID: 36756442 PMCID: PMC9846949 DOI: 10.1039/d2ra07051k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/09/2023] [Indexed: 01/19/2023] Open
Abstract
A Schiff base ligand HL, (E)-2-((adamantan-1-ylimino)methyl)-6-allylphenol, was synthesized by condensation of amantadine with 3-allyl-2-hydroxybenzaldehyde, followed by the synthesis of its Zn(ii), Co(ii), Cr(iii), and VO(iv) complexes under reflux conditions. The synthesized compounds were comprehensively elucidated by using different spectroscopic and analytical techniques: UV-Vis, 1H and 13C-NMR, FT-IR, ESI-MS, thermal, and single-crystal XRD analysis. The chemical composition of the synthesized compounds was also verified by molar conductance and elemental analysis. An octahedral geometry for Cr(iii) and Co(ii) complexes, tetrahedral for Zn(ii) complex, and square pyramidal geometry have been proposed for VO(iv) complexes. The antidiabetic activities of the synthesized compounds were also evaluated by performing in vitro α-amylase and α-glucosidase inhibition studies. The Co(ii) complex exhibited the highest α-glucosidase inhibitory activity, whereas oxovanadium(iv) and zinc(ii) complexes were also found to be effective against α-amylase. In alkaline phosphatase (ALP) inhibition studies, the HL was found to be inactive, while the complexes showed remarkable enzyme inhibition in the following order: VO > Zn > Co, in a concentration-dependent manner.
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Affiliation(s)
- Aliya Ajaz
- Institute of Chemistry, University of Sargodha 40100 Pakistan
| | | | - Maqsood Ahmed
- Materials Chemistry Laboratory, Institute of Chemistry, The Islamia University of Bahawalpur Baghdad-ul-Jadeed Campus 63100 Pakistan
| | - Khurram Shahzad Munawar
- Institute of Chemistry, University of Sargodha 40100 Pakistan .,Department of Chemistry, University of Mianwali Mianwali 42200 Pakistan
| | | | - Abdul Karim
- Institute of Chemistry, University of Sargodha 40100 Pakistan
| | - Nazir Ahmad
- Department of Chemistry, Government College University Lahore Lahore 54000 Pakistan
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Santos IA, Pereira AKDS, Guevara-Vega M, de Paiva REF, Sabino-Silva R, Bergamini FRG, Corbi PP, Jardim ACG. Repurposing potential of rimantadine hydrochloride and development of a promising platinum(II)-rimantadine metallodrug for the treatment of Chikungunya virus infection. Acta Trop 2022; 227:106300. [PMID: 34979144 DOI: 10.1016/j.actatropica.2021.106300] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/23/2021] [Accepted: 12/29/2021] [Indexed: 11/15/2022]
Abstract
Most of the patients infected with Chikungunya virus (CHIKV) develop chronic manifestations characterized by pain and deformity in joints, impacting their quality of life. The aminoadamantanes, in their turn, have been exploited due to their biological activities, with amantadine and memantine recently described with anti-CHIKV activities. Here we evaluated the antiviral activity of rimantadine hydrochloride (rtdH), a well-known antiviral agent against influenza A, its platinum complex (Pt-rtd), and the precursor cis-[PtCl2(dmso)2], against CHIKV infection in vitro. The rtdH demonstrated significant antiviral activity in all stages of CHIKV replication (29% in pre-treatment; 57% in early stages of infection; 60% in post-entry stages). The Pt-rtd complex protected the cells against infection in 92%, inhibited 100% of viral entry, mainly by a virucidal effect, and impaired 60% of post-entry stages. Alternatively, cis-[PtCl2(dmso)2] impaired viral entry in 100% and post-entry steps in 60%, but had no effect in protecting cells when administered prior to CHIKV infection. Collectively, the obtained data demonstrated that rtdH and Pt-rtd significantly interfered in the early stages of CHIKV life cycle, with the strongest effect observed to Pt-rtd complex, which reduced up to 100% of CHIKV infection. Moreover, molecular docking analysis and infrared spectroscopy data (ATR-FTIR) suggest an interaction of Pt-rtd with CHIKV glycoproteins, potentially related to the mechanism of inhibition of viral entry by Pt-rtd. Through a migration retardation assay, it was also shown that Pt-rtd and cis-[PtCl2(dmso)2] interacted with the dsRNA in 87% and 100%, respectively. The obtained results highlight the repurposing potential of rtdH as an anti-CHIKV drug, as well as the synthesis of promising platinum(II) metallodrugs with potential application for the treatment of CHIKV infections. Importance Chikungunya fever is a disease that can result in persistent symptoms due to the chronic infection process. Infected patients can develop physical disability, resulting and high costs to the health system and significant impacts on the quality of life of affected individuals. Additionally, there are no licensed vaccines or antivirals against the Chikungunya virus (CHIKV) and the virus is easily transmitted due to the abundance of viable vectors in epidemic regions. In this context, our study highlights the repurposing potential of the commercial drug rimantadine hydrochloride (rtdH) as an antiviral agent for the treatment of CHIKV infections. Moreover, our data demonstrated that a platinum(II)-rimantadine metallodrug (Pt-rtd) poses as a potent anti-CHIKV molecule with potential application for the treatment of Chikungunya fever. Altogether, rtdH and Pt-rtd significantly interfered in the early stages of CHIKV life cycle, reducing up to 100% of CHIKV infection in vitro.
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Affiliation(s)
- Igor Andrade Santos
- Laboratory of Virology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia-MG 38405-302, Brazil
| | | | - Marco Guevara-Vega
- Innovation Center in Salivary Diagnostic and Nanotheranostics, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Minas Gerais, Brazil
| | | | - Robinson Sabino-Silva
- Innovation Center in Salivary Diagnostic and Nanotheranostics, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Minas Gerais, Brazil
| | - Fernando R G Bergamini
- Laboratory of Synthesis of Bioinspired Molecules, Institute of Chemistry, Federal University of Uberlândia, Uberlândia-MG 34000-902, Brazil.
| | - Pedro P Corbi
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas-SP 13083-871, Brazil.
| | - Ana Carolina G Jardim
- Laboratory of Virology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia-MG 38405-302, Brazil; Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (Unesp), Campus São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil.
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Bond order effects on the optoelectronic properties of oxygen/sulfur functionalized adamantanes. J Mol Graph Model 2021; 105:107869. [PMID: 33667864 DOI: 10.1016/j.jmgm.2021.107869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/13/2021] [Accepted: 02/13/2021] [Indexed: 11/24/2022]
Abstract
The objective of this work, is to study adamantanes and to tune their bandgap, since pure adamantane is considered as an insulator due to its high bandgap energy. For this, we doped adamantane with oxygen and sulfur atoms, thus obtaining 730 different structures with double bonds and 730 different structures with single bonds, for a total of 1460 structures, and compared their properties. Among all, 31 molecules were selected that best represented the reduced bandgap behavior. The calculations with greater precision in its results were made using the Local Density Approximation (LDA), in the Density-Functional Theory (DFT) formalism, with PWC functional and TNP basis set. The electronic and optical properties were analyzed, by calculating the energy gap and absorption spectrum. Importantly, we observed that molecules doped with sulfur atoms (double bonds) had their energy gap reduced significantly compared to molecules doped with sulfur and/or oxygen atom with single bonds and pristine adamantane. It was found that in the absorption spectrum, the sulfur-doped structures had their spectrum shifted to the visible region, a fact that becomes relevant for potential dyes and optoelectronic applications. From the seven selected functionalized adamantanes (ADD-04, ADD-05, ADD-07, ADD-19, ADD-20, ADD-41, and ADD-48), any of these could be used as a dye. However, the ADD-20 molecule in particular, which presented optical absorption near (RGB) primary colors, could indicate a potential quantum dot material for application in developing screens of various electronic devices.
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